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[Sync-En] fpm: warn that an exposed FastCGI endpoint allows arbitrary code execution #1243

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julionc merged 2 commits into from
Sep 3, 2026
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[Sync-En] fpm: warn that an exposed FastCGI endpoint allows arbitrary code execution #1243

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9b930ec
[Sync-En] fpm: warn that an exposed FastCGI endpoint allows arbitrary…
lacatoire Sep 3, 2026
9a2e1b5
fpm: use por defecto, the term the style guide requires
lacatoire Sep 3, 2026
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20 changes: 19 additions & 1 deletion install/fpm/configuration.xml
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- EN-Revision: 7cd12cc82bc0a778241189596022acdda016d857 Maintainer: lacatoire Status: ready -->
<!-- EN-Revision: 7efe863bc4b65788f652e3d9eff27941b1a74540 Maintainer: lacatoire Status: ready -->
<!-- Reviewed: no -->
<sect1 xml:id="install.fpm.configuration" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<title>Configuration</title>
Expand Down Expand Up @@ -252,6 +252,24 @@
'ip.add.re.ss:port', 'port', '/path/to/unix/socket'. This option is
mandatory for each pool.
</para>
<warning>
<simpara>
Un punto de acceso FastCGI expuesto permite la ejecución de código
arbitrario.
Cuando el servidor web se ejecuta en el mismo host, es preferible un
socket Unix; en Linux su acceso se controla entonces mediante
<link linkend="listen-owner">listen.owner</link>,
<literal>listen.group</literal> y <literal>listen.mode</literal>,
aunque muchos sistemas derivados de BSD aceptan conexiones sin tener
en cuenta esos permisos.
Cuando se utiliza un socket TCP, las direcciones autorizadas a
conectarse deben enumerarse en
<link linkend="listen-allowed-clients">listen.allowed_clients</link>,
que no está definida por defecto y acepta entonces cualquier dirección.
En entornos de contenedores, el servicio FPM no debe publicar su puerto
en el host; los contenedores de la misma red se alcanzan directamente.
</simpara>
</warning>
</listitem>
</varlistentry>
<varlistentry xml:id="listen-backlog">
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19 changes: 16 additions & 3 deletions install/fpm/index.xml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 04210d535db52aed64b82572817f059059ddfebc Maintainer: PhilDaiguille Status: ready -->
<!-- EN-Revision: 7efe863bc4b65788f652e3d9eff27941b1a74540 Maintainer: PhilDaiguille Status: ready -->
<!-- Reviewed: yes Maintainer: PhilDaiguille -->
<chapter xml:id="install.fpm" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<title>FastCGI Process Manager (FPM)</title>
Expand Down Expand Up @@ -41,10 +41,10 @@
</para>
</listitem>
<listitem>
<para>
<simpara>
<function>fastcgi_finish_request</function> - función especial para terminar la petición y volcar todas las datos
mientras se continúa ejecutando una tarea consumidora (conversión de video por ejemplo) ;
</para>
</simpara>
</listitem>
<listitem>
<para>
Expand All @@ -65,6 +65,19 @@
</itemizedlist>
</para>

<warning>
<simpara>
php-fpm no debe ser accesible desde una red no confiable.
Un cliente capaz de abrir una conexión FastCGI controla la configuración
utilizada para la petición, incluida
<link linkend="ini.auto-prepend-file">auto_prepend_file</link>, y puede por
tanto ejecutar código arbitrario.
El acceso se restringe mediante las directivas
<link linkend="listen">listen</link> y
<link linkend="listen-allowed-clients">listen.allowed_clients</link>.
</simpara>
</warning>

&install.fpm.install;
&install.fpm.configuration;
</chapter>
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